Author Question: A sample of n = 25 scores has M = 20 and s2 = 9 . What is the sample standard deviation? a. 3 c. ... (Read 47 times)

burton19126

  • Hero Member
  • *****
  • Posts: 532
A sample of n = 25 scores has M = 20 and s2 = 9 . What is the sample standard deviation?
 
  a. 3 c. 9
  b. 4.5 d. 81

Question 2

Which of the following symbols identifies the sample variance?
 
  a. s c.
  b. s2 d.  2



kjohnson

  • Sr. Member
  • ****
  • Posts: 330
Answer to Question 1

A

Answer to Question 2

B



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Did you know?

More than 2,500 barbiturates have been synthesized. At the height of their popularity, about 50 were marketed for human use.

Did you know?

Multiple sclerosis is a condition wherein the body's nervous system is weakened by an autoimmune reaction that attacks the myelin sheaths of neurons.

For a complete list of videos, visit our video library